[Thane_Banquo]

Oh my friggin' goodness.

I'd say the environuts have gone too far, but this is actually one of their more moderate proposals.

[Cacique]

Most living organisms also produce carbon dioxide. Making the planet devoid of all life will surely prevent global warming.

[ancient_geezer]

Cattle around the world produce huge amounts of methane, a powerful gas, which accounts for about a fifth of the greenhouse effect.

Strange how they always want to leave out Water Vapor when counting up the effect of "greenhouse" gases.

 

http://www.clearlight.com/~mhieb/WVFossils/greenhouse_data.html

 

Water vapor overwhelms
all other natural and man-made
greenhouse contributions.

 

3. Table 3, shows what happens when the effect of water vapor is factored in, and together with all other greenhouse gases expressed as a relative % of the total greenhouse effect.

 

TABLE 3.

Role of Atmospheric Greenhouse Gases
(man-made and natural) as a % of Relative
Contribution to the "Greenhouse Effect"

Based on concentrations (ppb) adjusted for heat retention characteristics	Percent of Total	Percent of Total --adjusted for water vapor
Water vapor	-----	95.000%
Carbon Dioxide (CO2)	72.369%	3.618%
Methane (CH4)	7.100%	0.360%
Nitrous oxide (N2O)	19.000%	0.950%
CFC's (and other misc. gases)	1.432%	0.072%
Total	100.000%	100.000%

 

 

Putting it all together:
total human greenhouse gas contributions
add up to about 0.28% of the greenhouse effect.

 

5. To finish with the math, by calculating the product of the adjusted CO2 contribution to greenhouse gases (3.618%) and % of CO2 concentration from anthropogenic (man-made) sources (3.225%), we see that only (0.03618 X 0.03225) or 0.117% of the greenhouse effect is due to atmospheric CO2 from human activity. The other greenhouse gases are similarly calculated and are summarized below.

TABLE 4a.

Anthropogenic (man-made) Contribution to the "Greenhouse
Effect," expressed as % of Total (water vapor INCLUDED)

Based on concentrations (ppb) adjusted for heat retention characteristics	% of All Greenhouse Gases	% Natural	% Man-made
Water vapor	95.000%	94.999%	0.001%
Carbon Dioxide (CO2)	3.618%	3.502%	0.117%
Methane (CH4)	0.360%	0.294%	0.066%
Nitrous Oxide (N2O)	0.950%	0.903%	0.047%
Misc. gases ( CFC's, etc.)	0.072%	0.025%	0.047%
Total	100.00%	99.72	0.28%

 

[PeaceBeWithYou]

Cattle around the world produce huge amounts of methane, a powerful gas, which accounts for about a fifth of the greenhouse effect.

What idiot wrote this?

Methane as a greenhouse gas constitutes aproximately 1/278th(.36%) of all greenhouse gases, not 1/5th(20%).

[Cold Heat]

I fart in their general direction!